Upholstery-frame attachment



'June 24, 1930. s, L. WARREN 1,767,632

UPHOLSTERY FRAME ATTACHMENT Filed June 22, 1929 y-Patentefl June 24,1930 UNITED STATES' SIMON L. WARREN', 0F QUINCY, MASSACHUSETTS'UPHOLSTERY-FRAME ATTACHMENT Application led .Tune 22,

This invention relates to upholstery constructions in which coiled orhelical springs are mounted within a frame on a support, usually on stris of webbing secured to the l bottom thereo and-more particularly tomeans for holding such springs in position and under tension.

`In constructions of this character it is customary to employ cordswhich are connected to the frame and to the upper coils ofthe springs,to hold the springs under partial compression and to hold the top coilsthereof in suitably spaced relation, as illustrated in mv Patent No.1,754,921, dated l5 April l5, 19EO, in which an improved means forconnecting the cords to the frame 1s disclosed. Whi this means iseective and entirely satisfactory in constructions which are usuallyemplo ed, in high grade constructions, in whic the springs are of extralength, 0r where the frames are shallow as compared with the height ofthe springs diiliculty has been encountered in preventing the coils ofthe springs from being forced out of the central axial (position inwhich they are designed to be hel For example, the pressure on the topcoil of a spring is likely to be oblique to, or at one side of its axis,or center line, so that the coil will be tilted forward as it presseddownward. This action tends to force the middle coils of the spring toone side of its center line, so that the spring vthus becomes distortedand fails to function as intended. Continued distortion of a spring inthis manner often results in its more or less permanent distortion, l,and also causes a strongtendency to displace its bottom coils from thesupport on which it `is mounted. v

The primary object of the present invention is to provide 4means for soconnecting the cords to the frame that the spring coils may beeffectively held against ob]ectionable move; men-t out of axialrelation, and from becoming distorted by use, also to provide a deviceof simple construction for the above purpose which may be used inlieuof, or supplemental to the devices shown in said pending application,and which will provide an attaching means for the cordsso arranged thatthe 1929. Serial No. 372,969.

coils to which the cords are connected will be permitted to movevertically between the desired limits without placing undue strain onthe cords when the limit yof depression desired is reached. p c

, I accomplish these objects by the means hereinafter described and asillustrated in the accompanying drawings in which:

Fig. 1 is a plan view of a portion of an upholstery frame to which anattachment embodying the invention has been applied.

Fig. 2 is a vertical sectional view of a portion of the frame, on alarger scale.

Fig'. 3 is a detail view showing the action of the attachment.

Fig. 4 is a perspective view of the attachment before application. l

Fig. 5 is a perspectiveview of a modified form of attachment.

In the drawing a common form of u holstery frame l, is indicated, havinwe bing strips 2 secured by tacks to its ottom side, and on whichhelical springs 3 are mounted. A form of attachment 4 of the characterillustrated in m pending applica- 7 tion, Serial No. 364,405, led May20, 1929, is preferably employed on the frame directly over the spacesbetween the webbing strips, such attachments each comprising anattaching ring for the cords and a hook for holding the webbingsupporting frame.

The type of attachment to which the present invention more articularlrelates is adapted to be forme from a single length of wire, which isbent to rovide a main portion 5, corresponding in ength to the depth ofthe frame 1, and two end portions 6 and 7 which extend at right anglesthereto and in which eyes 8 and 9, respectively, are formed, v thruwhich tacks may be driven to secure said 9 portions to the top andbottom sides, respectively, of the frame. A loop or eye 10 is formed inthe wire at the point where the end portion extends from the mainportion 5, the end portions of the loop being twisted together to giveitstability and the loop being made in somewhat elongated form to providea nearlyv straight side portion 10', which extends approximatelyparallel to the'main portion 5. A second loop 11 is similarly 10 formedin or adjacent the middle of 'the por tion 5, the loop 11 likewisehaving a side portion 11 which is approximately parallel to said portion5. The wire is also bent to form tack receiving oyes 12 and 13 at eachside of, and closely adjacent the loop 11. A third loop 14 is alsoformed in the main portion 5 adjacent the end portion 7 and may likewisebe provided with a similar side portion 14', although at this point acircular form of loop may be employed with practically equal advantage.

The attachment thus-constructed is connected to the frame by placing themiddle portion 5 against its inner side, so that its end portions 6 and7 engage the top and bottom sides respectively of the frame andthendriving tacks into the frame through the eyes 8, 9, 12 and 13, tosecure it in position, as shown in Fig. 2.

If webbing supports are to be employed, of the character disclosed in mysaid pending application Serial No. 364,405, the above describedattachments will be secured to the frame directly over the webbingstrips, so that, in practice, they will be secured in position on theframe before the webbing strips are attached, andthe latter, whenattached, will be secured to the frame over the end portions 7 of theattachments, as shown in v igs'. 1 and 2.

The manner in which springs are connected by cords to the loops of theattachments will be varied according to conditions, but, in a generalway, will usually be similar to that indicated in Fig. 2, the upperloops 10 being connected' by one or more cords 15 to the upper coils ofadjacent springs, the middle loops 11 being connected by several cords16 to the middle coils of adjacent springs and the lower loops 14 beingconnected by cords 17 to one or more of the lower coils Vof the springs.In many instances the cords will be connected at one end, to a loop andthen will be extended across the frame to an opposite loop and connectedat intermediate points to various spring coils. This arrangement notonly permits depression of the coils from positions above the level ofthe points at which the respective restrainin cords thereof are attachedto corresponding positions below such points, but, by reason of theelongated forma tionvertically of the loops and their arrangement invertical planes at right angles to the the extent to which the coi s mayframes to which they are attached, the cords will be permitted to slidedown on the loops to an `extent and corres ondin ly increase v bedepressed without having further depression prevented by the cords, asindicated in Fig. 3.

Moreover, by providing means at, or adjacent the middle of the innerside of the frame, for the attachment of the coils at, or adjacent themiddle of the springs to the frame, lateral, or transverse axialmovement of the middle coils, to an extent which Awould be likely to bedetrimental or objectionable, will be prevented, without restricting theextent to which the coils may be depressed by the cords which hold themin place. The cords which are attached to the middle loops 11 areprincipally eifective in holding the middle coils in'axial relation,although cords may be extended from the bottom loops 14 to the middlecoils with satisfactory results.

In Fig. 5, a form of attachment 20 is shown which may be employedbetween the Webbino strips for the purposes disclosed in my saiapplication, Serial No. 364,405, the construe tion shown being similarto that disclosed therein, except that themain portion thereof, whichengages the inner side of the frame', is provided with cord receivingrings 21 and 22, similarly located to the loops 11 and 14, and which maybe employed for holding the coils in position in a similar manner tothat already described.

I claim: Y

1. In an upholstery construction including a frame havmg a support atits bottom side and a series of coiled springs mounted on said supportwithin the frame, a series of cordattaching devices, each consisting ofa metal strip secured to the inner side of the frame and extendingdownwardly from top thereof and having a plurality of cord-receiving`loops arranged to project within the frame at different elevationsbetween the top and bottom thereof, and cords connecting said loops andthe correspondingly located coils of the springs adjacent thereto.

2. In an upholstery construction including a frame having a support atits bottom side and a series of coiled springs mounted on said supportwithin the frame, a series of cordattaching devices, each consisting ofa metal strip secured to the inner side of the frame and extending fromtop to bottom thereof and having a plurality of cord-receiving loopsformed therein at intervals between the top- SIMON L. WARREN.

